Alert archive / Missouri / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 348

June 17, 2017Bourbon County, Cherokee County, Crawford County, Kansas; 10 counties in Missouri; 9 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2017, 10:18 PM CDT for Bourbon County, Cherokee County, Crawford County, Kansas; 10 counties in Missouri; 9 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 17, 2017, 10:18 PM CDT (03:18 UTC)
Expired
Jun 18, 2017, 4:14 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 22 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Hickory County, MO, Jasper County, MO, Miller County, MO, Morgan County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Creek County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Springfield radar (KSGF), 68 km from the middle of the area, began a volume at 03:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 17, 10:18 PM CDTSevere Thunderstorm WarningSGFBourbon57 min
Jun 17, 10:39 PM CDTSevere Thunderstorm WarningSGFVernon51 min
Jun 17, 11:06 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford54 min
Jun 17, 11:46 PM CDTSevere Thunderstorm WarningTSACraig, Nowata, Ottawa44 min
Jun 17, 11:49 PM CDTSevere Thunderstorm WarningTSAOsage41 min
Jun 18, 12:27 AM CDTSevere Thunderstorm WarningTSAOsage35 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.3 hours before the alert went out and 87 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2017-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1857 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2017-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1857 J/kg
Mixed-layer CIN
-325 J/kg
Mixed-layer LCL
1192 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 8:23 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Bourbon, Butler and 48 more2 hr
Jun 17, 9:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 15 more116 min
Jun 17, 11:55 PM CDTMesoscale DiscussionSPCBourbon, Chautauqua, Cherokee, Cowley, Crawford, Elk and 5 more95 min
Jun 17, 8:17 PM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Macon, Marion and 5 more58 min
Jun 17, 9:50 PM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cole, Crawford, Dent and 18 more55 min
Jun 17, 10:53 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 12 more6 hr
Jun 18, 1:40 AM CDTMesoscale DiscussionSPCJefferson, Sainte Genevieve, Saint Louis, City of Saint Louis3 hr
Jun 18, 2:34 AM CDTSevere Thunderstorm WatchSPCBollinger, Cape Girardeau, Perry, Scott3 hr
Jun 17, 9:33 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Garfield, Grant, Harper, Kay, Lincoln and 6 more7 hr
Jun 18, 3:44 AM CDTMesoscale DiscussionSPCCleveland, Coal, Creek, Garfield, Hughes, Kingfisher and 14 more2 hr
Jun 18, 4:14 AM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Cherokee, Cleveland, Coal, Creek and 20 more6 hr
Jun 18, 7:18 AM CDTMesoscale DiscussionSPCAdair, Atoka, Cherokee, Coal, Creek, Haskell and 14 more117 min

Nearby

Severe Thunderstorm Watches in Missouri, 2017Severe Thunderstorm Watches in Oklahoma, 2017Severe Thunderstorm Watches in Kansas, 2017Every severe thunderstorm watch in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.